Steam-boiler.



No. 655,0!8. Patentedluly 3|, I900.

R. SCHEIDLER.

STEAM BOILER. A ucaeion filed Feb. 28, 1898.)

(No Model.)

0 O O O OOOOOOOOOO LA w II111111111 wliifi swq M m: NORRIS PETERSCOnPKOYO-UTHO wasummun. o. c.

UNITED STATES PATENT OFFI E.

REINI-IARD SCIIEIDLER, 0F NEWARK, OHIO.

STEAM-BOILER.

SPECIFICATION forming art of Letters Patent No. 655,018, dated my 31,190%). Application filed February 28, 18984 Serial No. 672,010. (Nomodel.)

To all whom it may concern:

Be it known that I, REINHARD SCHEIDLER, of Newark, Licking county, Ohio,have invented certain new and useful Improvements in Steam-Boilers forTraction-Engines, &c.; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it pertains to make and use the same.1

My invention relates to improvements in steam-boilers, and moreespecially to a bbiler fortraction-engines .and locomotives;

One object is to make the steam-dome and the smoke-flue in one and thesame casting that has the smoke-flue formed centrally thereof and has asteam-chamber formed around the flue and having its opposing wallsstrong and durable and adequately connected together by internal staysintegral with the casting.

With this object in View and to attain certain other advantageshereinafter mentioned the invention consists in certain features ofconstruction and combinations of parts hereinafter described, andpointed out in the claims.

In the accompanying drawings, Figure I is a side elevation, partly insection, of a steamboiler embodying my invention. Fig. II is a verticalsection on line II II, Fig. I, looking in the direction of the arrow;Fig. III is a vertical section on line III III, Fig. I, look ing in thedirection of the arrow. Fig. IV is a transverse section on line IV IV,Fig. I.

Referring to the drawings, A designates the boiler proper; a, thesmoke-box,formed at one end of the tubed portion of the boiler; B, theupright smoke-flue, and O the steamdome. Flue B and dome C consist ofone upright casting suitably secured at its lower end to the top of thesmoke-box. The said casting has the smoke-flue forming passage-way Bextending vertically therethrough and in open relation at its lower endwith the chamber of the said box. The said casting has a steam-donie-forming chamber 12, formed around the smoke-flue. The outer orsurrounding wall or walls of chamber 1) are somewhat thicker than thesaid chambers inner wall or walls, and the said opposing walls areconnected together, and consequently reinforced,by any suitable numberof suitably a'rranged webs or stays b", that areintegral with the saidwalls. The top of the boiler, preferably near the smoke-box, and thelower por tion of the steam-dome are connected together by a pipe D,that is suitably secured to the boiler-top and dome and establishes openrelation between the steam-space of the boiler proper and the'lowerportion of the steamspace of the dome. E designates a pipe thatcommunicates with and leads from the upper end of the steam-space of thedome to'the engine-cylinder, (not shown,) wherein the steam is utilized.

The dividing wall or walls between the smoke-flue and steam-dome chamberis extended upwardly above the domea suitable distance to form an upwardextension of the. said flue.

It will be observed that the combined smoke-flue and steam-dome, beingmade of a reinforced single casting, isfree from seams or joints andrequires no riveting in its construction and is not liable to leak norto suecumb to the steam-pressure in the domechamber, nor is it liable tobe affected or inj ured by exhaust-steam and gaseous products ofcombustion. The domes outer shell is preferably somewhat thicker thanthe shell that separates the smoke-fluefrom the domechamber, so as toreduce the waste of heat and condensation of steam to a minimum.

The body of the smoke-box consists of two cylindrical shells to and aarranged the one, 65*, centrally within and somewhat smaller in externaldiameter than the internal diameter of the other, a, so as to form anair-space a between the exterior of the inner shell and the internalsurface of the outer shell. The said smoke-box shells are held apart bycollars K, interposed between the shells at suitable intervalscircu'mferentially of and near the outer ends of the shells. The saidcollars are mounted upon bolts K, that extend through both shells. Thesebolts are arranged with their heads at the outer side of the outershell, and nuts K are mounted upon the bolts at the inner side of theinner shell. The smoke-box at its outer end is provided with a door a.The inner shell a at the top is provided with an aperture a thatregisters with the passage-way through the the boilers water-carryingportion, of which smoke-flue. Myimproved smoke-box is comparativelylong-lived. The outer shell a or; jacket of the smoke-box willlast as long as the said shell is a part, and the inner shell or sectionofthe smoke-box when it is burned out for the purpose upon loosening thenuts and withdrawing the bolts that are instrumental in supporting thesaid inner shell. The latter is therefore removable and of courseextends from the boilers tubed or water-carry, ing portion to the outerendof the smokebox. By my improved construction ofsmokebox it is obviousthat little heat is wasted:

, The castinggthat, formsthe smoke-flue an-di steam domeis-provided atits lower end with a downwardly-projectingflange Okthat extends-around"the aperture of of the smoke box and engages the external surface of theoutershell of the smoke'-box-,and consequently obstructs oommunicationbetween the path" ofzthe productsof combustion and the air-' spacebetween the inner and outertshellsof" the smoke-box; The said castinghas its smokerflue-formin g :portion. extending: below the'dome-formin gportion, and the said down? ward extension atits lower end and'aboveaflange O is provided with a laterally-project in g external flange-Cthat engages the external surface-of the outer shell of the smokebox:Bolts 0. extend throughthe said-flange O and through-both shells of thesmoke-box; The bolts are arranged with their heads at the up persidesiof the flange. Nuts are mounted upon the bolts at theinnersurface'of the inner shell of the smoke-box and collars 0 are mountedupon :the: bolts between the two. shellsof vthe smoke-box: Thesaidcollars .0 arerinstrumental in bracing apart the two: shells-andreinforce the'support for the cast: i g rthat forms :thesmoke-flue andsteamy dome, The said construction rendersthe said cast-ingreadilyremovable, and of course-the said nuts andbolts arewithdrawn to accomemodate-the removal of the inner shell of the" smoke-box;

What I claim is.-

1.: As an article of manufacture, thedome 0 having. thecentrally-located open-ended upright passage-way B, the chamber 1)formed around the surrounding wall of the aforesaid passageway, and thewebs -or stays 1) connecting the said Wall with the outer wall of thechamber, which last-mentioned wall is thicker than the first-mentionedwall, substantially as shown, for the purpose specified. or requiresrepairing can be: readily removed- 2. In a steam-boiler, the combinationwith the tubed water-carrying portion of the boiler,

and thesmoke-box comprising two separated shells supported the onewithin the other, and

the innershells top having an aperture; of acastinghavingacentrally-located open-ended passage way thatcommunicates with theaforesai daperture, and arranged upon the smoke-box and flangedlaterally and e ter- 'nally at its lower-rend,tb'olts extendingthrou-ghl;

the saidflange'diend and througlrboth'smokebox shells, nuts L'UP'OII:thieiabolts, nieans for f 7 steam-chambersurroundin'g-thepassage-way,a'pipe orpassage way between thesaid lch'arn tbertandthesteainrspaceofthe tubed portion of: the boiler, and another pipe or passagebracing,"apart the two shells at ztheibolts; a

way forconductin g steam, from the chamber;

substantially as shown, for the purpose S PBGl-I the tubed water-carryin gpo-rtionofftheboil'er, i

and the:smoke-box'comprisin-gtwoseparated end; bolts: extendingthroughthe said flanged ing anauprightsmootli passage-way;commu:-.

boiler, and another pipe or passageway for conrductin g steamifromthe-saidtchambensub stantially as set forth;

day of February, 1898.

a a REINHARDSGHEIDLERL.

Witnesses W. E. D'oNNnLLY,

C. H. Donna.

Signed by'me atv Cleveland,Ohio,-1this- 2d

